Propeller-gear.



Patented Mar. l8, I902.

6. w. GARDINER.

PROPELLEB GEAR.

(Application filed May 28, 1901.)

(No Nodal.)

IN VE N 7 0/9 6607:9'6 6 2011546 2" W/ TNE SSE 8 TINTTEE STATES ATENTOFFICE.

GEORGE WASHINGTON GARDINER, OF PHILADELPHIA, PENNSYLVANIA.

PROPELLER G EAR.

SPECIFICATION forming part of Letters Patent No. 695,717, dated March18, 1902.

Application filed May 28, I901.

To all whom, it may concern:

Be it known that I, GEORGE VVASHINGTON GARDINER, a citizen of the UnitedStates, and a resident of Philadelphia, in the county of Philadelphiaand State of Pennsylvania, have invented a new and Improved Propeller-Gear, of which the following is a full, clear, and eX act description.

This invention relates to a propeller-gear which comprises a framearranged in a trunk formed in the vessel and adapted to be lowered belowthe bottom of the vessel, so as to properly place the propeller in thewater.

The invention is applicable to vessels of all kinds, and if applied to acenterboard vessel the trunk carrying the centerboard may be enlarged,so as to receive also the propellergear, and one or more centerboardsmay be employed, as desired.

This specification is a specific description of one form of theinvention, while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both views.

Figure 1 is a side view with parts broken away, showing my inventionapplied as an auxiliary to a sailing vessel; and Fig. 2 is a plan Viewof the invention.

(t represents the frame, which carries the propeller and is arranged toswing around the axis of a transverse shaft 1). The frame carries thepropeller-shaf t c, the forward end of which has a gear d meshing with agear e on the shaft b, which therefore serves not only as a means ofhanging the frame a, but also as the drive-shaft.

frepresents the propeller, which is carried on the after end of theshaft 0, and g indicates a guard which is fastened to the frame a andpasses under the propeller, so as to prevent it from comingin contactwith the ground and also to fend off any floating objects which mightbecome entangled in the propeller.

The frame a is fitted in a suitable trunk h, formed in the vessel, andthe frame is provided with a chain or other device 1, by which it may beraised or lowered at will. By lowering the frame a the propeller will bein operative position, and upon driving the shaft Z) the vessel itselfwill be driven ahead. By

Serial No. 62,254. (No model.)

raising the frame a up wholly within the trunk h the propeller will beout of active position and it will be protected on all sides from injuryand will not impede the progress of a vessel under sail.

I have here shown the propeller-gear as applied to a sailing vessel, andin this case the trunk It carries also the centerboard. WVith thearrangement here shown I prefer to employ two centerboards, which arehere designated it. These centerboards may be hung loosely on the shaft12 and provided with a suitable tackle Z for raising and lowering them,so that the oenterboards may be used independently or jointly, asdesired. If preferred, one centerboard and one propeller may beemployed, or the propeller-gear may be duplicated and arranged one oneach side of the single centerboard.

I desire it distinctly understood that the invention is not necessarilyused in connection with a centerboard vessel. It is applicable tovessels of all kinds; but I consider it especially advantageous in theconnection shown in the drawings. The shaft b may be driven in anysuitable manner, either by motive or manual power. In Fig. 2, in may represent two motors of any sort, which are arranged at the sides of thetrunk h and coupled with the shaft 1) to drive it.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination with a marine vessel having a trunktherein, of a frame mounted in the trunk and movable downward to apointbelow the vessel, a propeller-gear carried in the frame, and acenterboard working in the trunk independently of the said frame.

2. The combination with a marine vessel having a trunk therein, of aframe mounted in the tru nk and movable downward to a point below thevessel, a propeller carried by the frame,and a centerboard workingin thetrunk independently of said frame.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE WASHINGTON GARDINER.

Witnesses:

, GEORGE W. RUE, JOHN H. HUDsoN.

